- noun a light that provides illumination from behind
- noun light behind a liquid crystal display unit that improves the contrast of characters on the screen and allows it to be read in dim light
- To illuminate from behind (and often above) an object.
- The light source positioned behind the viewing surface of an LCD with a backlit display. Also spelled back-light.
- noun a light that illuminates the subject from behind on a film set, helping them to stand out against the background.